﻿#region Copyright and Licensing Notice
// Copyright (C) 2011 Steven Bosnick
// 
// This program is open source software; you can redistribute it 
// and/or modifiy it under the terms of the Eclipse Public License,
// version 1.0.
// 
// This program is distributed in the hope that it will be useful, 
// but WITHOUT ANY WARRANTY; without even the implied
// warranty of MERCHANTABILITY or FITNESS FOR A 
// PARTICULAR PURPOSE. See the Eclipse Public License for more
// details.
// 
// You should have received a copy of the Eclipse Public License 
// along with this program; if not, you can find a copy at
// "http://www.opensource.org/licenses/eclipse-1.0.php".
#endregion
using System;

namespace BitwiseOre.SharedMemory.Core.Primatives
{
    internal sealed class SharedByteArray : SharedArray<byte>, IByteArray
    {
        public SharedByteArray(IUnmanagedMemoryAccessor accessor) : base(accessor) { }

        public int ReadArraySegment(int index, ArraySegment<byte> destination)
        {
            return Accessor.ReadArray(GetOffset(index), destination.Array,
                                      destination.Offset, destination.Count);
        }

        public int WriteArraySegment(int offset, ArraySegment<byte> source)
        {
            var count = (int)Math.Min(source.Count, Accessor.Capacity - offset);
            Accessor.WriteArray(offset, source.Array, source.Offset, count);

            return count;
        }
    }
}